MCQ Collection

ACT Senior Secondary Certificate Sciences MCQs

Practice ACT Senior Secondary Certificate Sciences questions with answers and explanations.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 74: An ACT senior class applies the information to a public-policy, planning or research investigation. An enzyme extracted from pea seedlings is tested at 20°C. Which statement about enzyme action is correct?

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Science task 75: An ACT senior class applies the information to a public-policy, planning or research investigation. Cells from the bone marrow of a growing organism undergo mitosis. What is the usual outcome?

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Science task 67: An ACT senior class applies the information to a public-policy, planning or research investigation. A device transfers 269 J in 20 s. What is its average power?

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act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 68: An ACT senior class applies the information to a public-policy, planning or research investigation. In experiment 8, pH is varied while growth of mice is measured. Why include an untreated control?

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Science task 69: An ACT senior class applies the information to a public-policy, planning or research investigation. In genetic cross 9, two heterozygotes Aa are crossed under complete dominance. What is the probability of a dominant phenotype?

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Science task 70: An ACT senior class applies the information to a public-policy, planning or research investigation. A tracer starts at 0.20 mol and undergoes 2 half-lives of 3 minutes each. How much remains?

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Science task 61: An ACT senior class applies the information to a public-policy, planning or research investigation. A 14 kg test trolley accelerates at 8 m/s². What net force acts on it?

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act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 62: An ACT senior class applies the information to a public-policy, planning or research investigation. A circuit has 39 V across a 19 Ω resistor. What current flows?

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act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 63: An ACT senior class applies the information to a public-policy, planning or research investigation. A compound has molar mass 26 g mol⁻¹. What is the mass of 11 mol?

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act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 64: An ACT senior class applies the information to a public-policy, planning or research investigation. An enzyme extracted from bacteria is tested at 32°C. Which statement about enzyme action is correct?

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act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 65: An ACT senior class applies the information to a public-policy, planning or research investigation. Cells from the skin of a growing organism undergo mitosis. What is the usual outcome?

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act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 66: An ACT senior class applies the information to a public-policy, planning or research investigation. A solution has pH 2. What is its hydrogen-ion concentration?

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